Äntligen dyker något roligt upp i brevlådan.. En VU mätare. Utan tull eller frakt dessutom.

Som vanligt inte ett käft om hur den är tänkt att användas eller kopplas in.
Vid vilken nivå peaker den te.x.. Och går det att ställa?

Mono 32 Level indicator DIY Kits LED VU Meter Amplifier lamps Light Speed Adjustment:

1. Mono 32 segment widening lights to ensure adequate dynamic range and fine enough.
2. Exclusive custom widening lights strip. ( There are no similar lights in the market ).
3. The rising speed and the falling speed of the light bar, the holding time and the falling speed of the peak can be adjusted separately.
4. Real-time mode and AGC mode selection (super wide range of AGC adaptive algorithm to ensure the best effect)
5. Small size, can be easily loaded into small case.
6. Single button operation.
7. Brightness adjustment function.

Specific operation: (There are LED instructions operating time)

I. Normal mode:

1. Press the button for 1 second - Mode switch (there will be a corresponding preview ).
2. Press the button for 3 seconds - Switch between real mode and AGC mode ( there will be a corresponding preview ).
3. Press the button for 5 seconds - Enter the speed setting mode .
4. Press the button for 10 seconds - Factory default .
5. Double click on the button - Adjust the brightness of the light bar, low / medium / high.

II. Speed setting mode: (In normal mode, press the button for 5 seconds to enter, press the button for 5 seconds to exit).

1. Press the button for 1 second
a. The rising speed of the light bar (15 optional)
b. The falling speed of the light bar (15 optional)
c. The holding time of the peak (15 optional)
d. The falling speed of the peak (15 optional)
e. Zoom in / out in real time mode (15 optional)
f. Brightness adjustment (15 optional)
Loop in these functions.

2. Click the button - Loop to change the parameters set.

"Testriggen". En bas pre-amplifier jag hittade i projektlådan som legat några år nu..

Hade glömt bort att jag hade några sådana.

kanske t.om skulle testa att byta ut rörförstärkaren mot denna och höra vad som händer..
Jag använder den ju bara till basen ändå.. Och denna ska ju vara gjord för ändamålet.

DC 12V-24V Low-pass Filter NE5532 Bass Tone Subwoofer Pre-Amplifier Preamp Board:

Power supply voltage: DC12V-24V DC single power supply
Frequency range: 22Hz-300Hz
Audio input: mono or two-channel
Audio output: monaural
PCB Size: 78x32mm, thickness: 1.6mm
PCB Materials: FR-4 ultra-hard glass plate
Finished plate net weight: 30g
Plate mounting holes center to center spacing: 70x24mm, hole diameter: 3.2mm
Potentiometer shaft center to center spacing: 32.5mm